Once a good story is written, a writer must edit and improve - that is your task today.
Read through your story very carefully.
Pick out a sentence that you could have improved and rewrite it - it could be that you missed a capital letter at the beginning or a full stop at the end. Maybe you missed out a word or confused the structure of the sentence.
Reading your story out loud will help you to see where you could improve your work.
Finally, choose someone you know to read the story to and cheer up their day with your amazing work :)